feat: Add python 3.12 to test workflows

[angelofenoglio]

What?

• Adding python 3.12 to integration and unit test workflows

Why?

• Make sure that we test against the newest python version

[coveralls]

Pull Request Test Coverage Report for Build 10776745542

Details

• 5 of 5 (100.0%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 69.031%

---

Totals
Change from base Build 10565657542:	0.0%
Covered Lines:	2018
Relevant Lines:	2812

---

💛 - Coveralls

[angelofenoglio]

Had to fix the way assertions on patched objects are called to account for: python/cpython#100690
Going forward those calls should all start with assert_.